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The Double Channel 2U Professional Amplifier from Dolsi Audio Equipment Co., Ltd. is a rack-mounted power amplifier designed for live sound and fixed installations, delivering 250W to 1200W into 8-ohm loads across multiple models. It features a dual-channel stereo configuration with independent gain controls, bridgeable output options, and a 2U chassis designed for standard 19-inch equipment racks. The unit operates with Class AB topology for balanced power efficiency and low distortion.
The amplifiers are built with industrial-grade aluminum heat sinks and reinforced steel chassis to manage thermal load during extended use. Input connectivity includes balanced XLR and 1/4-inch TRS, while outputs are secured through SpeakON terminals. Typical signal-to-noise ratio is 95dB or higher, and total harmonic distortion remains below 0.1% at rated power. These specifications meet common industry benchmarks for touring and commercial audio systems, though exact figures vary by model (e.g., XLi800, XLi1500).
This amplifier series is used by event technicians, theater sound engineers, and nightclub installers requiring reliable high-power output in compact form. Buyers typically select models based on speaker impedance matching and headroom requirements. Trade terms are negotiable, with FOB Guangzhou and CIF common. MOQ is typically one unit, and lead time is 15 to 25 days after order confirmation. Buyers should request a thermal stress test report and frequency response curve for the specific model.
| Form Factor | 2U rack mount (88mm height) |
| Channel Configuration | Dual mono or bridgeable stereo |
| Power Output Range | 250W to 1200W per channel into 8 ohms |
| Input Connectors | Balanced XLR and 1/4-inch TRS |
| Output Connectors | SpeakON NL4 |
| Topology | Class AB |
| Signal-to-Noise Ratio | Typical 95dB or higher |
| Total Harmonic Distortion | Typical below 0.1% at rated power |
| Frequency Response | 20Hz to 20kHz ±0.5dB (standard range for professional amplifiers) |
| Cooling System | Forced air with temperature-controlled fans, rated for continuous duty at 8-ohm load |
Dolsi Audio Equipment Co., Ltd. is a manufacturer located in Shatou Street, Panyu District, Guangzhou, Guangdong, China. The company specializes in professional audio amplifiers and related equipment for commercial and live sound markets. Its listing shows harbor-tier trust status and imported-tier supplier classification, indicating verified business registration and export experience. No claims are made about company size, revenue, certifications, or client lists.
The supplier does not disclose workforce numbers, production volume, or R&D capabilities. All product information is derived from the listing description and is not supported by third-party validation. Buyers should treat this as a direct manufacturer without OEM affiliations. No certifications such as CE or UL are mentioned in the source data and must be confirmed directly with the supplier.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before ordering, confirm the exact model number (e.g., XLi800, XLi1500) and request its technical datasheet with measured power output, THD, and frequency response. Verify whether the unit is rated for 4-ohm operation if you plan to connect low-impedance speaker arrays. Do not accept generic product descriptions - demand model-specific test reports.
Confirm the Incoterms offered - FOB Guangzhou is typical - and whether the supplier provides export documentation including commercial invoice and packing list. Lead time is usually 15 to 25 days. Payment terms are commonly 30% advance, 70% before shipment. Buyers should request a shipping schedule and container loading plan to coordinate port clearance.
Perform a pre-shipment inspection focusing on output terminal integrity, fan operation under load, and input/output labeling. Test the unit with a dummy load to confirm power output and thermal stability. Ensure the packaging includes anti-static foam and moisture barriers. Request an English-language manual and warranty card. Without these, customs and installation may face delays or liability issues.
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When importing Double Channel 2u 250w To from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Click the "Request Quotation" button to contact Dolsi Audio Equipment Co., Ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Yes, Dolsi Audio Equipment Co., Ltd. provides Double Channel 2u 250w To for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Dolsi Audio Equipment Co., Ltd.. Contact the supplier to discuss the best logistics options for importing Double Channel 2u 250w To to your country.
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